Finding the Fourth Proportional to 2,139.27, 3,204.21 and 1,041.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.27 : 3,204.21 = 1,041.30 : x
2. Step 2: Convert to fraction form
   2,139.27/3,204.21 = 1,041.30/x
3. Step 3: Cross multiply
   2,139.27x = 3,204.21 × 1,041.30
4. Step 4: Simplify right side
   2,139.27x = 3,336,543.87
5. Step 5: Solve for x
   x = 3,336,543.87/2,139.27
6. Step 6: Final answer
   x = 1,559.66